Kali Linux is a Debian-derived Linux distribution designed for digital forensics and penetration testing. It is maintained and funded by Offensive Security Ltd. It was developed by Mati Aharoni and Devon Kearns of Offensive Security through the rewriting BackTrack, their previous forensics Linux distribution
Skype is a freemium voice-over-IP service and instant messaging client, currently developed by the Microsoft Skype Division. The name was derived from “sky” and “peer”. Skype was first released in …